update composer

Author: omaralalwi

README.md

@@ -1,5 +1,5 @@
 <p align="center">
-  <a href="https://qwen-php/qwen-php-client" target="_blank">
+  <a href="https://github.com/qwen-php/qwen-php-client" target="_blank">
     <img src="https://github.com/qwen-php/qwen-php-client/blob/master/public/qwen_screenshot.png?raw=true" alt="Qwen Usage">
   </a>
 </p>